I have a 2019 F-150 Reg, Cab XL 5.0L, and have an had Edelbrock Supercharger Phase 1 installed a month ago. I have had to add a little coolant every couple of days to keep the reservoir at top level. I was wondering could this just be air in the system or is there a leak???

 

Either way I'd take it back to the installer to check things out.